Re: errors of "error" models
ann : next-to-come - facupov in our sow : how our general 4-port results in our virtual 2-port - a simple proof using high-school math
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gin&pez@arg
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#8652
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Re: New version of NanoVNA-Saver: 0.2.1
Hi, Rune! Thanks for your answer in NanoVNA-Saver0.2.0 thread. I will continue here. There was a task to find out an impedance of unknown teflon coax cable, which looks like 75 Ohm. I did it with the
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Andy UA3RAW
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#8651
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Re: First PCB pictures of the V2
The design is to be finalized (last prototype verification) in a week. After that it depends on the manufacturer, but I'm guessing a month or so. However I may have a few excess prototypes that I can
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OwO
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#8650
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Re: errors of "error" models
#92 ' : Our General Picture of [TheLeastVNA] - Update Hello, Allow us, please, to update our General Picture of [TheLeastVNA] [1] by * c o r r e c t i n g * its its very part referenced to Erik's,
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gin&pez@arg
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#8648
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Re: First PCB pictures of the V2
Hi Gabriel, based on your experience, what would be an educated guess for the release date and general availability of the new VNA design of yours? Pablo LU8ACO
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Pablo E. Untroib
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#8647
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Re: Thermal effect?
Thanks QRP and jlxsolutions, it seems as if I intuitively did the right thing. But I gives a much better feeling, reading about your observations and solutions. Happy New Year, Chris, OE1CGS
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Christoph Schw?rzler
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#8646
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Re: New extended Tutorial Version 1.5. for the NanoVNA-H
Yep!! Thanks for that fix. I did have it there at one point becuase I tested it. But somewhere dropped it the version below. Good spot.
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Rick Commo
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#8645
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Re: Calibration Algorithm
#calibration
On Tue, Dec 24, 2019 at 02:55 PM, hb9 iiu wrote: And here the mentioned code..... ====================================================== Daniel, Thanks for sharing the script. Good example of why
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hwalker
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#8644
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Re: NanoVNA Presentation
#measurement
#nanovna-saver
#tutorials
There will be one but it takes time to translate.? On Tue, 24 Dec 2019 at 6:31 PM, Randall Steffens II via Groups.Io<pomology@...> wrote: Hi Luc, Thanks for the very interesting pdf
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Larry Rothman
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#8643
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Re: NanoVNA Presentation
#measurement
#nanovna-saver
#tutorials
Hi Luc, Thanks for the very interesting pdf presentation. I only wish there were an English version! Randy NC8U
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Pomology
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#8642
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Re: Calibration Algorithm
#calibration
And here the mentioned code.....
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hb9 iiu
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#8641
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Calibration Algorithm
#calibration
Dear All, I finally managed to get what I was looking for, but taking a somewhat lazy approach. I used the excellent open source scikit-rf Python library (https://scikit-rf.readthedocs.io/en/latest/)
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hb9 iiu
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#8640
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Re: First PCB pictures of the V2
I must admit that I find it annoying that I released ATLC under the GPL http://atlc.sourceforge.net/ then find someone else has released ATLC2 http://www.hdtvprimer.com/KQ6QV/atlc2.html which is very
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Dr. David Kirkby, Kirkby Microwave Ltd
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#8639
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Re: New extended Tutorial Version 1.5. for the NanoVNA-H
Not quite.? (Missing one %20.)? Here it is: http://www.hamcom.dk/DIV/Male%20and%20female%20calibration%20NanoVNA-H.pdf
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Jim Allyn - N7JA
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#8638
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Re: First PCB pictures of the V2
Can you be more specific as to what copyright you are referring to? The hardware is our own design with nothing taken from your design, and the firmware uses your UI code in compliance with the GPLv3
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OwO
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#8637
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Re: First PCB pictures of the V2
Our customer owns the "nanovna" account on GitHub and I have commit access. I'll bring up the naming issue with them, but as a contractor we aren't in a position to directly make changes to our
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OwO
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#8636
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Re: errors of "error" models
Will do -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK
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Erik Kaashoek
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#8635
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Re: errors of "error" models
@Erik, PD0EK - 24 December 2019: /g/nanovna-users/message/8632 : Dear Erik, Take into account, please, that we already * c o r r e c t l y * rephrased what you are quoting -obviously
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gin&pez@arg
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#8634
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Re: New extended Tutorial Version 1.5. for the NanoVNA-H
Here is the link wihtout the embedded spaces. http://www.hamcom.dk/DIV/Male%20and%20female%20calibration NanoVNA-H.pdf
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Rick Commo
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#8633
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Re: errors of "error" models
The 3 term error model is a 2 port network and 3 independent measurements to fully characterize the network -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files:
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Erik Kaashoek
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#8632
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